Search a number
-
+
1295940 = 223521599
BaseRepresentation
bin100111100011001000100
32102211200210
410330121010
5312432230
643435420
714005152
oct4743104
92384623
101295940
11805728
12525b70
13364b39
1425a3d2
151a8eb0
hex13c644

1295940 has 24 divisors (see below), whose sum is σ = 3628800. Its totient is φ = 345568.

The previous prime is 1295881. The next prime is 1295947. The reversal of 1295940 is 495921.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1295898 and 1295907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1295947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10740 + ... + 10859.

It is an arithmetic number, because the mean of its divisors is an integer number (151200).

21295940 is an apocalyptic number.

1295940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1295940 is an abundant number, since it is smaller than the sum of its proper divisors (2332860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1295940 is a wasteful number, since it uses less digits than its factorization.

1295940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21611 (or 21609 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1295940 is about 1138.3936050418. The cubic root of 1295940 is about 109.0255530249.

The spelling of 1295940 in words is "one million, two hundred ninety-five thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 21599 43198 64797 86396 107995 129594 215990 259188 323985 431980 647970 1295940